Drum for stoves and heaters



Patented Nov. 28, 1922,

DRUIVI FOR STOVES .AND HEATERS.

Application filed December 31, 1921.

T 0 all whom t may cof/wem.'

Be it known that I, JOHN M. ANDnRsoN, a citizen of the United States, residing at Sweet Springs, in the county of Saline and State of Missouri, have invented certain new and useful Improvements in Drums for Stoves and Heaters, of which the following is a specification.

This invention relates to a drum or atta-chment for use on stoves and heaters for the purpose ot' utilizing the heat to the best advantage.

One object oi' the invention is to provide a drum that will fit overv the top of an oil heater or a gas stove and collect the heat therefrom and compel the air to take a downward course within the drum, thereby permitting a better air circulation in the room.

Another object is to Construct the drum in such a manner that it may be used as a baking oven or for keeping cooked food warm.

In the accompanying drawing- Figure 1 shows a perspective view of the drum as positioned on an oil stove;

Figure 2 is a transverse section oi the drum;

Figure 3 is a similar View with a slight modification Figure 4 is a top plan View of the bottom rino' in the drum shown in Figure 3;

n the drawing, the numeral 10 denotes an oil stove, on top of which is placed the drum 11. The drum, as seen in section in Figure 2, consists of' an inner cylinder 12 with a flared bottom edge 13 suitable to engage the top of the oil heater. The top of the cylinder 12 is closed by means of a plate 14; which extends all around it to carry the casing 15 which is also cylindrical and has a. bottom 16 fitting around the wall of the cylinder 12. In this manner, an inner chamber 17 and an outer chamber 18 are formed and apertures 19 are provided in the cylinder 12 forming a communication between the inner and the outer chamber and other apertures 20 at the. lower end of the wall 15 are provided ior outlets for the air.

It will be evident that, when the drum is placed on top of the oil stove, the heated air Serial No. 526,187.

will collect in the inner chamber 17 and proceed through the upper apertures 19 into the outer chamber following a downward pat-h along the outer wall and out through the openings 2O into the room. In this manner, a better circulation of air will be promoted as it is now compelled to take a downward course, whereas ordinarily it would rise from the heater and travel towards the ceiling of the room, leaving the lower layers of air therein intact.

The construction shown in Figure 3 is similar to what has been described with regardto Figure 2, that is to say, an inner chamber 17' is formed by the cylinder 12 surrounded by an outer chamber' 18 formed in the casing 14, 15, but instead of a fixed bottom, as seen in Figure. 2, this drum is provided with a slidable bottom 21 which has a flange 22 engaging around the cylinder and being guided thereby for up and down movement along the cylinder, while the outer edge of the bottom 21 engages the cylindrical wall 15 o' the drum. Instead of apertures 2O being provided in the side wall 15, the bottom 21 has now a number of these apertures 23 furnished in a circle around it, see Figure 4. It will be evident that in providing a loose bottom in this manner the outer chamber 18 may be contracted or enlarged as the case may be to suit conditions.

It is evident that the drum can just as well be placed upon the top of a cook stove or a gas range for baking or heating food. In some cases, it might be necessary to cut the flared edge 13 in one or more places, as at 37, to lit the top of the heaters, when provided with ridges or projections.

Having thus described the invention, what is claimed as new is:

1. A drum of the` class described comprising a central tube forming an inner chamber open and unobstructed throughout its bottom, a casing surrounding said tube and forming an outer chamber enclosed on all sides, said casing closing and being supported by the upper end of the central tube there being openings through the wall of the tube at the upper end of the same establishing communication between the inner and outer chambers and there being outlet openings at munication being provided between said the bottom of the outer chamber. Chambers at the upper end and said casing 2. A drum of the dass described comprishaving a bottom provided with apertures 10 ing e cylindrical central tube With a ared and adapted to slide axially on said tube. 5 bottom edge and forming an inner chamber, In testimony whereof I aix my signature.

a casing surrounding said tube and forming an outer chamber enclosed on al1 sides, com- JOHN M. ANDERSON. [1.. s.] 

